80 Domain Name System Max Length In This Year

Here are some interesting statistics related to domain name length.

Domain name system max length. According to a report from domain marketplace sedo during 2011 the most popular length for any name traded on the marketplace was 8 characters. Each label is represented as a one octet length field followed by that number of octets. Since every domain name ends with the null label of the root a domain name is terminated by a length byte of zero.

Although the maximum length of an active directory distinguished name registry uid is 2048 the maximum length of each relative distinguished name rdn is 64. The latter is based on the maximum path length possible with an active directory domain name with the paths needed in sysvol and this needs to obey to the 260 character max path limitation. A domain name can be as long as 253 characters all told but it s rare that one is.

If you configure security access manager to use multiple active directory domains the maximum length of the user identity and group name does not include the domain suffix. The domain name system dns is a hierarchical and decentralized naming system for computers services or other resources connected to the internet or a private network. Whole udp message also should be less or equal 512 bytes.

The maximum length of the host name and of the fully qualified domain name fqdn is 63 bytes per label and 255 characters per fqdn. Domain name length statistics.